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Manual gearbox 02T Design and Function Self-Study Programme 237 Service.

Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

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Page 1: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

Manual gearbox 02T

Design and Function

Self-Study Programme 237

Service.

Page 2: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

2

Please always refer to the relevant Service Literature

for all inspection, adjustment and repair instructions.

The Self-Study Programme

is not a Workshop Manual!

New ImportantNote

The 02T 5/6-speed manual gearbox

Gearbox design

With the new 02T 5/6-speed manual gearbox of the MQ200 series, Volkswagen has succeeded in developing an ultra-light twin-shaft gearbox. The housing is manufactured from magnesium. The gearbox can transmit up to 200 Nm of torque and is used throughout the Group in combination with various engines ranging from the A00 class to the A class.

The final drive ratios and the ratios of the individual gears can be matched to the power outputs of the various engines.

The type diversity within the gear and final drive ratios allows an optimum compromise to be found between sporty and economical gearbox design for all automotive applications.

The gearbox is operated by means of selector cables. The clutch control is hydraulic.

The development goals for the new gearbox were as follows:

– Easy and exact gear-changes– Optimal efficiency– Low weight– Modular technology– Standard cable-operated gearbox

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Page 3: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

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Table of contents

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Modular system

Gearbox mechanicals . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Gearbox designInput shaftOutput shaftBearing supportDouble synchronisersDifferentialForce path

Selector mechanism . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Outer selector mechanismInner gear change mechanism Selection movementShift movementReverse gear lock

Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

6-speed-version . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Gearbox designModifications to the 5-speed versionForce path

Test your knowledge . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

Page 4: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

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Introduction

The modular system

Individual modules are assembled in modular form.This increases their functionality after assembly in series production and in the service workshop.

The modules are:

Clutch release lever

This module contains the clutch release lever, the release bearing and the guide sleeve.

Selector shaft with selector mechanism cover

All blocking detent, spring and guide elements of the selector mechanism, as well as the angle piece for adjustment of the selector mechanism are accomodated in this module.

The inner selector module

with shift forks, selector plates and bearing.

The bearing support

with the two grooved ball bearings and pre-assembled powertrain and output shaft.

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237_041

237_042

237_043

Clutch release lever

Selector shaft

Selector mechanism cover

Angle piece

Shift finger

Inner selector mechanism

Bearing support

Output shaft

Input shaft

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The housing

is made from magnesium and consists of 2 parts (gearbox housing, clutch housing).The gearbox housing is sealed off from the exterior by a cover.

The fixing points for the left assembly mounting bracket are located at the top of the gearbox housing. The attachment points for the self-aligning bearing support are located at the bottom of the gearbox housing.

237_039

Gearbox housing cover

Gearbox housing

Clutch housing

Fixing points for assembly mounting

In comparison with aluminium, magnesium has a lower density and therefore also lower strength. This was compensated for by thicker ribbing and increased wall thickness.

The result is a mass reduction of 2.5 kg compared to the conventional aluminium construction.

The lower material density of the housing necessitates increased bolt screw-in depths.

To protect the housing against electrochemical degradation, the bolts are coated (see SSP 192, page 36/37).

Page 6: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

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Gearbox mechanicals

Gearbox design

The 02T manual gearbox is a compact gearbox for 5-speed front wheel drive.

It is a twin-shaft gearbox with an additional axle for reverse gear.

The gears on the input and output shafts are helical-cut and continously in mesh.

All change gears run in needle bearings to maximise smoothness.

The reverse gear is straight-cut.

The 1st and 2nd gears are engaged on the output shaft and the 3rd, 4th and 5th gears are engaged on the input shaft.

Reverse idler gear

Gearbox housing cover

Gearbox housing

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Final drive gear

When reverse gear is selected, the reverse idler gear is engaged on a separate shaft between the input and output shaft, and the direction of rotation the output shaft is changed.

All forward gears are synchronised. 1st and 2nd gears have double synchronisers.

Torque is transmitted to the final drive gear, and therefore also to the differential, via the output shaft gear.

Clutch release lever

Input shaft

Output shaft

Output shaft gear

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Clutch housing

Differential

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Gearbox mechanism

The input shaft

is mounted in a bearing assembly in the gearbox housing together with a cylindrical roller bearing in the clutch housing (loose bearing) and with a grooved ball bearing (fixed bearing).

For mass reduction, the input shaft has a deep bore.

The synchromesh body of 3rd/4th gear and 5th gear are connected positively to the input shaft via a longitudinal grooved spline.

After one of the gears is engaged, the corresponding "idler gear" is also connected to the input shaft.

Locking rings hold the gears in position.

The 1st, 2nd and reverse gear wheels are connected positively to the input shaft.

The 3rd, 4th and 5th gear wheels are loose and run in needle bearings.

237_032

Change gear, 5th gear

Bearing support with grooved ball bearing

Gearing, reverse Cylindrical roller bearing

Change gear, 4th gear

Deep bore for mass reduction

Change gear, 3rd gear

Gearing, 2nd gear

Gearing, 1st gear

237_031

Locking ring

Synchromesh body, 3rd/4th gear

Synchromesh body, 5th gear

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The output shaft

has a fixed / idler bearing.

As with the input shaft, the output shaft runs in bearings in the gearbox housing – together with a cylindrical roller bearing

(idling) in the clutch housing– together with a grooved ball bearing (fixed)

which is mounted together with the input shaft in the bearing assembly.

For mass reduction, the output shaft is hollow-drilled.

The 1st and 2nd gear wheels are idler gears and run in needle bearings on the output shaft.

The 3rd, 4th and 5th gear wheels and the synchromesh body for 1st/2nd gear are positively connected to the output shaft in the direction of rotation by means of close-spaced gear teeth.

Locking rings hold the gears in position.

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237_034

Gear wheel, 5th gear

Bearing support with grooved ball bearing

Final drive gear Cylindrical roller bearing

Gear wheel, 4th gear

Bore for mass reduction

Gear wheel, 3rd gear

Change gear, 2nd gearChange gear, 1st gear

Locking ring

Synchromesh body, 1st/2nd gear

Page 10: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

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The bearing support

The modular design is a new feature of the gearbox layout.

A module of this type is the bearing support with the two grooved ball bearings.

The grooved ball bearings are not mounted directly in the gearbox housing, they are seated in a separate bearing support.

The complete shaft and gear packet of the input and output shaft is pre-assembled outside the gearbox housing in the bearing support and, thus, can easily be installed in the gearbox housing.

For repair work, the bearing support together with the two grooved ball bearings is replaced completely.See also the instructions in the Workshop Manual.

New

237_035

Bearing support

Input shaft

Output shaft

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Gearbox mechanism

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237_037 237_038

Bearing support

Collar

The two grooved ball bearings for the "fixing" the input and output shafts are an integral part of the compact bearing support and are press-fitted in it.

The grooved ball bearings are located in the design position using a form disk. The form disk is welded onto the bearing support.

The grooved ball bearings are protected against abrasion residues in the gearbox oil by separate radial sealing rings.

The bearing support, with its spectacle type collar, is press-fitted in the gearbox housing and secured to the gearbox housing with six bolts.

Grooved ball bearing

Seal

Form disk

Seal

Page 12: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

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Double synchroniserfor 1st/2nd gear

Before a gear on the input shaft is engaged with a gear on the output shaft through the synchromesh body and the sliding sleeve, it is first of all necessary to synchronise the gears. The gears are synchronised during the gearshift via a taper on the gear and on the sliding sleeve of the synchromesh body.

This near-doubling of the area of the tapered friction face increases synchroniser performance by approx. 50 % and almost halves the shifting effort required.

The result is an improvement in operating comfort during down-changes from 3rd gear into 2nd gear and from 2nd into 1st gear.

The double synchronisers for each gear consist of

– a synchroniser ring (inner)– a tapered ring– a synchroniser ring (exterior).

Sliding sleeve

Change gear, 1st gear

Change gear, 2nd gear

237_021

Outer synchroniser ring

Outer tapered ring

Inner synchroniser ringChange

gear

237_022

237_023

Gearbox mechanism

Synchromesh body for 1st and 2nd gear

Inner taper for synchronisation

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The differential

Is combined with the manual gearbox to form a unit.

It is mounted in two optimised tapered roller bearings in the gearbox and clutch housing.

Two oil seals with different diameters seal the housing off from the exterior at the flange shafts.

The final drive gear is riveted to the differential housing and paired with the output shaft gear.

After replacing components, the differential is required to be readjusted axially in the clutch housing with an adjusting disc. Refer to the relevant Workshop Manual for instructions!

237_027

237_028

Output shaft gearFinal drive gear

Gearbox housing

Clutch housing

Differential housing

Adjusting disc

Flange shaft, right

Tapered roller bearings

Segments for speed reduction

Oil seal

Tapered roller bearings

Flange shaft, left

Oil seal

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Gearbox mechanism

1

2

R1

23

4

5

237_005237_011

237_006237_019

R

Force path

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The force path in the gearbox

Engine torque is transferred to the gearbox via the input shaft.

In accordance with the gear selected, the torque is transferred via the relevant gear pair to the output shaft and from here to the final drive gear and differential.

Torque and engine speed now act on the driven wheels in accordance with the shift position.

3

5

4

237_009237_007

237_008

Page 16: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

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Selector mechanism

The two selector cables transmit the selection and shift movements of the gear lever to the selector shaft.

The mechanism (relay lever and lever for shift movement) translates the movements of the 2 selector cables to forward, reverse and rotary movements of the selector shaft.

An angle piece is attached to the selector mechanism cover. It locates the selector shaft in a pre-defined position so that servicing work can be carried out.

As a result, the cable pull transmission is much easier to adjust (Page 22).

Shift movementSelection movement

Relay lever

Selector mechanism coverGearshift lever with balance weight

237_045

Lever for shift movement

Angle piece

Outer selector mechanism

To isolate vibrations from the drive line region, the gearbox is equipped with a cable-operated transmission.

Two selector cables connect the gear lever (on board the vehicle) and gearbox.

Selector shaftShift finger

Page 17: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

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A 4-gate selector mechanism, with reverse gear at the front left, was selected for the new manual gearbox.

The position of the other gears is the same as on the standard gearshift mechanism.

A conventional push lock (page 21) is used as a safeguard against unintentional engagement of reverse gear.

237_046

2

R1

35 4

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Gear selector cable

Gate selector cable

Gear lever

Selector housing

Page 18: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

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Inner gear change mechanism

The shift movements are transferred to the gearbox from above.

The selector shaft is located in the selector mechanism cover. The selector shaft moves axially during selection movements and rotates during shift movements.

Two spring-loaded balls lock the selector shaft in position.

Selector mechanism

The shift forks for 1st/2nd and 3rd/4th gear are mounted in angular continuous ball bearings. These bearings increase the ease of movement of the selector mechanism.

The shift fork for 5th gear has low-friction bearings.

When changing gear, the selector plate and the shift fork of the selector shaft are moved by the shift finger.

The gear change segments of the shift forks are seated in the sliding sleeve of the relevant gear pair.

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237_058

Selector shaft

Selector mechanism cover

Angular continuous ball bearing

Locking ball(not visible)

Selector plate

Shift fork 3rd/4th gear

Shift fork 5th gearShift fork 1st/2nd gear

Shift fork, reverse gearGear change segment

Selection movement

Shift movement

Page 19: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

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The selection movement

The selection movement (right-left) initiated at the gear lever is translated to backward and forward movement of the gate selector cable via the selector lever.

The selector lever is mounted in pivot bearings on the bearing shaft.

The backward and forward movements of the selector cable are translated to an up/down movement of the selector shaft by the outer mechanism on the gearbox.

For this purpose, the gate selector cable is fixed to the relay lever. The relay lever is mounted in pivot bearings and connected non-rigidly to the selector shaft by means of a slipper.

In the gearbox, this up/down movement locates the shift finger on the selector shaft in the relevant selector plate which the selected gear is to be engaged in (1st/2nd gear; 3rd/4th gear; 5th gear or reverse gear).

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Gear lever bearingGear lever

Ball guide

Selector lever

Bearing pin

Gate selector cableRelay lever

Selector plate

Slipper

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Shift finger(concealed) Selector shaft

Selection movement

Page 20: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

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The gearshift movement

The direct gear shift movement is transferred via the selector lever guide to the gear selector cable.

If the gear lever is moved forwards or backwards in the direction of the individual gears, the gear selector cable is pulled or pushed in the opposite direction to the selector lever movement.

Selector mechanism

The forward or reverse movement of the gear selector cable during the gearshift causes the selector shaft to rotate.

The movable slipper keeps the gate selector cable relay lever unchanged in the position selected.

In the gearbox, the shift finger on the selector shaft moves the selector plate during this rotary movement. In turn, the selector shaft drives the shift fork and shifts the gear change sleeve.

The gear is now engaged.

237_057

237_054

Gear lever bearing

Shift movement

Gear leverBall guide

Gear selector cable

Slipper

Cam on gearshift lever

Relay lever

Selector shaft

Reverse gear engaged

Selector plate

Shift finger

Balance weight

Page 21: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

21

The reverse gear lock

A push lock serves as a safeguard against unintentional engagement of reverse gear.

The push lock is integrated in the selector housing.

The driver has to overcome the push lock first before reverse gear can be selected and engaged.

The pressure spring again pushes up the gear lever in the engaged position and holds it in the reverse position.

During a normal selection stroke of the forward gears, the locking cam of the gear lever comes up against the lock (an integral part of the selector housing).

When the gear lever is pressed down against the pressure spring, it glides downwards through the spherical selector lever guide; the locking cam is now located below the interlock.

During the reverse gear selection movement that follows, the interlock is bypassed allowing the reverse gear to be selected.

2

1

2

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Press downSelect gear2

1

Selector housing

Gear lever

Pressure spring

Selector lever guide

1

2

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237_062

237_061

237_059

Pressure spring

Gear lever

Selector lever guide

Interlock

Locking cam

Page 22: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

22

Service

Gear selector cable

Gate selector cable

2

11

2

1

3

2

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237_049

Angle piece

Adjusting the cable-operated gearbox

Adjustment of the cable-operated gearbox has been simplified by an angle piece on the selector mechanism cover and a locating pin for the gear lever.

The adjustment always begins when the gearbox is in the neutral position:

To detach the selector cables, follow this procedure:

Draw the locking mechanism at the gear selector cable and at the gate selector cable forwards as far as the stop. Afterwards, engage locking mechanism by turning anticlockwise. The selector cables can now be adjusted for length.

To arrest the selector shaft, follow this procedure:

An angle piece which locates the selector shaft is fixed to the selector mechanism cover.To locate the selector shaft, press down the selector shaft by hand in the gate for 1st/2nd gear. When you press down the selector shaft, press the angle piece towards the selector shaft and then rotate in direction of arrow. It engages and locates the selector shaft in this position.

1

2

12

3

Selector mechanism cover

Page 23: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

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– To arrest the gear lever, follow this procedure:

With the engine running at idling speed, locate the gear lever in the gate of the 1st/2nd gear.The gear lever has a locating hole. Insert the locating pin T10027 through this bore and into the hole below it in the selector housing.

– To fix the selector cables in position, follow this procedure:

The locking mechanism on the gate selector cable and on the gear selector cable can now be turned clockwise.The spring presses the locking mechanism into the set position and secures it.Afterwards, detach the angle piece again and pull out the locating pin.The gear lever should now be in the gate of the 3rd/4th gear, with the engine running at idling speed.

R 1 3 5

2 4Position of gear lever during the setting operation

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237_050

237_052

Locating hole

Locating pin T10027

Selector housing

Page 24: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

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Sensors

Road speed display

An impulse sender wheel milled in the differential housing generates the signals that speedometer sender G22 requires to determine the actual road speed of the vehicle.

Speedometer sender G22 is inserted in a drill hole in the gearbox housing from the outside.

The sender operates according to the Hall sender principle. The electrical impulses generated by the sender are transmited to the control unit in the dash panel insert. Here, the signals are conditioned for the actual road speed and mileage display.

Advantage:Ultra-high display accuracy, smooth running, temperature resistant.

Electrical circuit

D +15 Ignition switch, terminal 15G21 SpeedometerG22 Speedometer senderJ285 Control unit in dash panel insert

G21

G22

31

D+15

J285

G22 J285 G21

237_014

237_015

237_013

Speedometer sender G22

Reference mark on differential housing

Page 25: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

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Reversing light switch F4

The reversing light switch is screwed into in the gearbox housing at the side.

When reverse is engaged, the switch is actuated by a rise on the reverse gear selector plate.

The electrical circuit for the reversing lights is closed.

Electrical circuit

D +15 Ignition switch, terminal 15F4 Reversing light switchM16 Reversing light bulb, leftM17 Reversing light bulb, right

237_018

F4

M17M16

31

D+15

237_020

Reversing light switch F4

Gearbox housing

Rise

Reverse gear selector plate

Page 26: Design and Function - · PDF fileCylindrical roller bearing Gear wheel, 4th gear Bore for mass reduction Gear wheel, 3rd gear Change gear, 1st gear Change gear, 2nd gear Locking ring

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6-speed version

In principle, the 6-speed gearbox has the same architecture as the 5-speed gearbox.

The gearbox housing cover had to be extended to accomodate the 6th gear, which also involved extending the input and output shafts.

The synchromesh body for the 5th gear was designed so that it can also be used to engage 6th gear.

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Gearbox design

Modifications made for 6-speed version

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Modifications to the 5-speed version

The components for the 6th gear are arranged in the gearbox housing cover.

The gearbox housing cover

Also covers the input and output shaft bearings.

Compared to the 5-speed version manufactured from sheet steel, a magnesium casting was used.

The input and output shafts

Were extended to accomodate the gear wheels and change gears for the 6th gear.

The change gear for the 6th gear runs in needle bearings on a sleeve of the input shaft. The sleeve is also used as a support bearing by the input shaft in the gearbox housing cover.

The gear wheel for the 6th gear is located on the output shaft by means of longitudinal toothing and is mounted, with a collar, in the roller bearing of the gearbox housing cover.

Roller bearing

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Change gear, 6th gear

Sleeve

Gearbox housing cover

6th gear wheel, with longitudinal toothing

Needle bearing

Roller bearing

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6-speed version

Force path

Engine torque is transferred to the gearbox via the input shaft.

In accordance with the gear selected, engine torque is transferred via the synchromesh body for 5th/6th gear to the output shaft and from here to the differential.

R1

23

4

56

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237_026

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5

6

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Notes

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Test your knowledge

1. In the 02T manual gearbox, the gear and final drive ratios can be varied to a considerable degree. The advantages are:

A. Maximum ratio spread.B. An optimum compromise between sporty and economical driving modes is possible for all vehicle applications. C. It is possible to use the gearbox for different engine capacities and platforms

throughout the Group.

2. The gearbox housing is manufactured from magnesium. The advantages are:

A. Drastic weight savings.B. Enhanced vibration and noise comfort.C. Considerable savings on cost of materials.

3. A characteristic of the gearbox is its modular design. Name at least three gearboxmodules/assemblies

...............................................................................................................................................................................

...............................................................................................................................................................................

...............................................................................................................................................................................

4. The gearbox is equipped with the standard cable-operated transmission. The advantages are:

A. Low friction losses during operation.B. The lateral forces and bending moments acting on the elements of the inner and outer selector mechanisms are kept to a minimum.C. Mechanical vibration is isolated from the drive line region.

What answers are correct?Sometime only one answer will be correct.However, more than one – or all of the answers may also be correct.Please fill in the gaps.

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5. The angle piece on the selector mechanism cover is used to

A. Fix the selector shaft in a pre-defined position.B. Fix the gearshift lever in a pre-defined position.C. Simplify adjustment of the standard cable-operated transmission.

6. The range of special tools includes locating pin T10027. It is used to

A. Fix the gear lever in the gate for 1st/2nd gear.B. Lock the selector shaft.C. Adjust the gear lever in relation to the selector housing.

7. Road speed is reduced via

A. Mechanical intermediate steps … speedometer drive wheel and speedometer drive shaft.

B. Sensors on the gearbox and wireless transmission to the control unit in the dash panel insert.

C. Direct engine speed reduction at the differential housing by a Hall sender and subsequent transfer to the control unit in the dash panel insert.

8. The bearing support is a new feature of the transmission shaft bearing.

A. As a result, the bearings can be exchanged quickly, easily and individually.B. After repair work, the bearing support must be replaced completely.C. The complete shaft and gear packet of the input and output shafts and

the bearing support is pre-assembled as a module.

Solutions

1. A., B.; 2. A.; 3.Clutch release lever, selector shaft with selector mechanism cover, inner gear change mechanism, bearing support for input and output shafts; 4. C.; 5. A., C.; 6. A., C.; 7. C.; 8. B., C.

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Service. 237

For internal use only © VOLKSWAGEN AG, Wolfsburg

All rights reserved. Technical specifications subject to change without notice.

940.2810.56.20 Technical status: 01/00

❀ This paper is produced from

non-chlorine-bleached pulp.